For example, its angular/linear limits. Is it even possible or Constraint Actors/Components are the only ones that can be dinamically changed?
From my experience, I don’t believe that is possible. If it were however, it would most likely be a bad idea as the physics would act unexpectedly with a constraint that isn’t static. I’m not quite sure how well this would work but you could try setting up multiple physics assets and switching between them at runtime instead of altering the settings of a single asset.